Part of a wood joint (5)
I believe the answer is:
tenon
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">part of a wood joint</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for tenon that I've seen before include "Part of woodworking joint" , "piece of carpentry?" , "Mortise filler" , "Shaped end of piece of wood for slotting into a hole." , "Kind of saw" .)